Google has announced that the first non-development beta of Android 12 is available for Pixel phones, as of the new OS upgrade's introduction at I/O 2021. The OEM has also unveiled various new features now found in its own-brand phones' UI. It is now called Material You, and incorporates new privacy, performance and navigational tweaks.
https://www.notebookcheck.net/Android-12-Beta-1-rolls-out-to-Pixel-phones.540007.0.html